22488437 has 2 divisors, whose sum is σ = 22488438. Its totient is φ = 22488436.

The previous prime is 22488407. The next prime is 22488439. The reversal of 22488437 is 73488422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12666481 + 9821956 = 3559^2 + 3134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22488437 is a prime.

Together with 22488439, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22488437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22488439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11244218 + 11244219.

It is an arithmetic number, because the mean of its divisors is an integer number (11244219).

Almost surely, 2^22488437 is an apocalyptic number.

It is an amenable number.

22488437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22488437 is an equidigital number, since it uses as much as digits as its factorization.

22488437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 38.

The square root of 22488437 is about 4742.1974863981. The cubic root of 22488437 is about 282.2624394904.

The spelling of 22488437 in words is "twenty-two million, four hundred eighty-eight thousand, four hundred thirty-seven".